Top 100 eCommerce Marketing Agencies in California
The Best of December 2025Looking for a top eCommerce marketing agency in California?
In the business-to-business (B2B) sector, eCommerce marketing agencies are essential partners for businesses seeking to maximize their online sales and growth potential. By collaborating with eCommerce marketing agencies, businesses can optimize their digital marketing efforts, improve their conversion rates, and achieve sustainable growth in the rapidly evolving eCommerce landscape.
To assist you in your search for a partner, we’ve compiled this list of the top eCommerce marketing companies in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California eCommerce Marketing Services
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61$1,000+10 - 49 employeesSan Diego, CABranding company Rank N Bank focuses on Branding and Content Marketing. They are based in San Diego, California.Read More
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62$1,000+2 - 9 employeesSan Francisco, CABased in San Francisco, California, Commerce Media Studio is an Ecommerce Marketing company. They provide Ecommerce Marketing and Search Engine Optimization.Read More
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63$1,000+2 - 9 employeesIrvine, CAKnewChoice Inc is an Irvine, California-based social media marketing agency. The team offers Social Media Marketing and Conversion Optimization.Read More
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64$1,000+2 - 9 employeesGlendale, CAPR Register is a social media marketing firm. In Glendale, California, the firm was launched in 2020. Their services include Social Media Marketing and Search Engine Optimization.Read More
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65$25,000+50 - 249 employeesSan Francisco, CAAdvertising company Ready Set is in San Francisco, California. They focus on Advertising and Media Planning & Buying.Read More
Clients
DoorDashIndustries
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66$5,000+10 - 49 employeesWest Hollywood, CAEstablished in 2022, Wheels Agency is a small social media marketing firm located in West Hollywood, California. Their team focuses on Social Media Marketing and Affiliate Marketing.Read More
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67$1,000+10 - 49 employeesSan Diego, CASelnox infotech , a social media marketing agency, was established in 2022. They focuses on Social Media Marketing and Search Engine Optimization.Read More
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68$1,000+250 - 999 employeesWest Hollywood, CAThe Rocket Retail is a midsize e-commerce development firm in San Francisco, California. They specialize in e-commerce development, back office outsourcing, content marketing, search engine optimization, and more and were launched in 2016.Read More
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69$1,000+10 - 49 employeesLong Beach, CAThe Amazon Xperts is a Long Beach, California-based Digital Strategy company. They provide Digital Strategy and Search Engine Optimization and were launched in 2021.Read More
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70$75,000+10 - 49 employeesLos Angeles, CALaunched in 2023, EcomMás is a social media marketing company. Located in Bogotá, Colombia and Los Angeles, California, the team focuses on Social Media Marketing and Corporate Photography.Read More
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71$1,000+2 - 9 employeesVentura, CAYecommerce is an Affiliate Marketing company. Launched in 2021, the agency is in Ventura, California. Their team focuses on Affiliate Marketing and Ecommerce Marketing.Read More
Industries
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72$10,000+50 - 249 employeesNewport Beach, CABased in Newport Beach, California, Shopify Ecom Solutions is an e-commerce development company. Their services include E-Commerce Development and Web Design.Read More
Industries
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73$1,000+50 - 249 employeesSan Jose, CALaunched in 2019, SEO San Jose is a SEO agency. The team specializes in Search Engine Optimization and Mobile App Development.Read More
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74$50,000+10 - 49 employeesLos Angeles, CAPixly, a social media marketing firm, is in Los Angeles, California and San Francisco, California. They offer Social Media Marketing and Mobile & App Marketing and were launched in 2017.Read More
Industries
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75$1,000+2 - 9 employeesSan Diego, CAXprez Marketing, a SEO company, offer Search Engine Optimization and Pay Per Click. They were founded in 2023.Read More
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76$1,000+2 - 9 employeesEncinitas, CAFounded in 2014, Tribe Interactive, LLC is a small Encinitas, California-based Digital Strategy company. Their team offers Digital Strategy and Conversion Optimization.Read More
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77$5,000+10 - 49 employeesIrvine, CASynov-Systems is a PPC company. Headquartered in New York, New York and Irvine, California, the team offers Pay Per Click and Ecommerce Marketing.Read More
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78Undisclosed2 - 9 employeesSan Francisco, CASocial media marketing company ReWeb Marketing was established in 2023. The team provides Social Media Marketing and Search Engine Optimization and is in San Francisco, California.Read More
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79Undisclosed2 - 9 employeesLos Angeles, CAEcom Nest is a social media marketing agency. In Los Angeles, California, their small team provides Social Media Marketing and Search Engine Optimization. The firm was established in 2024.Read More
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80$1,000+10 - 49 employeesSacramento, CAThe Speedy Web is a SEO services firm. Founded in 1992, the team focuses on Search Engine Optimization and Pay Per Click.Read More
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81$10,000+10 - 49 employeesOrange, CAMarketing Strategy company pave.agency is located in Orange, California. The team specializes in Marketing Strategy and Ecommerce Marketing.Read More
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82$1,000+10 - 49 employeesLos Angeles, CAAdvertising company The Dropship Experts is headquartered in Los Angeles, California. Their services include Advertising and Branding.Read More
Industries
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83$1,000+2 - 9 employeesTruckee, CAWeb design company Tahoe Marketing was established in 2018. The team focuses on Web Design and Social Media Marketing and is headquartered in Truckee, California.Read More
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84$1,000+2 - 9 employeesCarmichael, CAPeerless Digital Marketing , a PPC company, is in Carmichael, California. The team provides Pay Per Click and Digital Strategy.Read More
Industries
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85Undisclosed2 - 9 employeesSan Diego, CAHale Production Studios is a small Advertising company. Founded in 2020, the team provides Advertising and Product Marketing.Read More
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86$5,000+2 - 9 employeesLos Angeles, CARead More
McCaplan Consulting Group, a branding firm, was established in 2020. They are headquartered in Los Angeles, California and have a small team. McCaplan Consulting Group focuses on branding, marketing strategy, digital strategy, content marketing, and more.
Industries
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87$1,000+50 - 249 employeesLos Angeles, CAUSA Web Design Experts is a midsize Los Angeles, California-based e-commerce development firm. The team specializes in E-Commerce Development and Ecommerce Marketing.Read More
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88$5,000+2 - 9 employeesGlendale, CAFounded in 2021, 7Rock Marketing is a small Email Marketing company. Their team specializes in Email Marketing and Search Engine Optimization.Read More
Industries
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89Undisclosed2 - 9 employeesFremont, CAP1 Office Furniture is a small Fremont, California-based Interior Design company. Their services include Interior Design and Ecommerce Marketing.Read More
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90$1,000+2 - 9 employeesWestlake Village, CALiquid Starz, an e-commerce development company, is based in Westlake Village, California. They provide E-Commerce Development and Ecommerce Marketing.Read More
Industries
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